One vertex per element, one color per generator, with an edge from x to x·s.
(3,7)(6,8)(9,10,13,11)(12,15,16,14)(17,18,21,24)(19,22,27,25)(20,23,28,30)(26,29,32,31)(33,34)(35,40)(36,41)(37,42)(38,39)(43,48)(44,46)(45,47)(2,5)(6,8)(9,11,13,10)(12,15,16,14)(20,28)(23,30)(26,32)(29,31)(34,39)(35,41)(37,45)(44,48)(1,2)(3,6)(4,5)(7,8)(17,18)(19,25)(20,23)(21,24)(22,27)(26,31)(28,30)(29,32)(33,35,38,41)(34,40,39,36)(37,46,45,43)(42,44,47,48)(9,12)(10,14)(11,15)(13,16)(17,19)(18,22)(20,26)(21,27)(23,29)(24,25)(28,32)(30,31)(33,36,38,40)(34,41,39,35)(37,44,45,48)(42,46,47,43)(1,3,4,7)(2,6,5,8)(17,20)(18,23)(19,26)(21,28)(22,29)(24,30)(25,31)(27,32)(33,37,38,45)(34,42,39,47)(35,43,41,46)(36,44,40,48)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.